Nonprofits in Massachusetts

Nonprofits in Massachusetts. Browse 52,168 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. Sleeveless Theatre Inc

    EIN 043211965 · Headquarters: Arlington, MA, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  2. Sli Mclaughlin House Inc

    EIN 043463779 · Headquarters: LEXINTON, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Sli Warren House Inc

    EIN 043261931 · Headquarters: LEXINGTON, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Slingshot Inc

    EIN 920924154 · Headquarters: Arlington, MA, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Slope Publishing Inc

    EIN 030397817 · Headquarters: Greenfield, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Slotnick Korelitz Charitable Trust

    EIN 276671002 · Headquarters: CHATHAM, MA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Slough Farm

    EIN 812235374 · Headquarters: Edgartown, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Slovak Catholic Sokol

    EIN 237523053 · Headquarters: Douglas, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  9. Slovak Catholic Sokol 28

    EIN 237522695 · Headquarters: Douglas, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Slovak Catholic Sokol 35

    EIN 237522853 · Headquarters: webster, MA, US · Religion Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  11. Slovak Citizens Club Inc

    EIN 237417720 · Headquarters: WESTFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Slovak Gymnastic Union Sokol of the USA 244

    EIN 237265786 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Slow Down and Live Inc

    EIN 931942815 · Headquarters: BROOKLINE, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Slow Food USA

    EIN 270488412 · Headquarters: East Bridgewater, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  15. Slow Food USA Inc

    EIN 043834337 · Headquarters: West Tisbury, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  16. Slow Food USA Inc

    EIN 200196858 · Headquarters: Great Barrington, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  17. Slow Food USA Inc

    EIN 264784423 · Headquarters: Rehoboth, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  18. Slow Food USA Inc

    EIN 320245937 · Headquarters: East Orleans, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  19. Slow Food USA Inc

    EIN 473411464 · Headquarters: Orleans, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  20. Slow Please Inc

    EIN 042990744 · Headquarters: MARBLEHEAD, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. Sluice Pond Association Incorporated

    EIN 841698418 · Headquarters: LYNN, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Slum Child USA

    EIN 412511153 · Headquarters: Stow, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Small Army for a Cause Inc

    EIN 263065084 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Small Business Foundation Inc

    EIN 522448025 · Headquarters: WORCESTER, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Small Can Be Big Inc

    EIN 463296105 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990

  26. Small Dog Boatworks Inc

    EIN 332873145 · Headquarters: Lynn, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Small Friends on Nantucket Inc

    EIN 043001787 · Headquarters: NANTUCKET, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Small House Inc

    EIN 871849442 · Headquarters: CAMBRIDGE, MA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Small Ideas Inc

    EIN 833119063 · Headquarters: peabody, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Small Planet Dancers

    EIN 463592384 · Headquarters: Westfield, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Small Planet Institute Inc

    EIN 204549249 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Small Property Owners Association Inc

    EIN 043118975 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  33. Small Property Owners Association Newsletter Inc

    EIN 830465281 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Small Solutions Inc

    EIN 271515416 · Headquarters: NEWBURYPORT, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Small Town Summits Inc

    EIN 824318178 · Headquarters: Pepperell, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Smaller Business Association of New England Inc

    EIN 042029078 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990

  37. Smalltype Foundation Inc

    EIN 814830549 · Headquarters: Billerica, MA, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Smart from the Start Inc

    EIN 454952663 · Headquarters: ROXBURY CROSSING, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Smart Planning & Growth Coalition Inc

    EIN 223867020 · Headquarters: Hyannis, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  40. Smart Roofing & Building Enclosure Council

    EIN 821089363 · Headquarters: SPRINGFIELD, MA, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Smart Team Inc

    EIN 753103202 · Headquarters: BOSTON, MA, USA · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990

  42. Smarter in the City Inc

    EIN 471127201 · Headquarters: Cambridge, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Smarter Sports Association Inc

    EIN 462923980 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  44. Smartphone Foundation

    EIN 460963604 · Headquarters: Seekonk, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  45. Smartquad Corporation

    EIN 921845408 · Headquarters: WESTFORD, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Smartsustainability Inc

    EIN 454970650 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990

  47. Smashmouth Wresting Club Inc

    EIN 272476434 · Headquarters: BROCKTON, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  48. Smb Foundation

    EIN 460706945 · Headquarters: Mansfield, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. SMCWC - Crossroads Housing Inc Crossroads Shelter

    EIN 461061701 · Headquarters: East Boston, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. SMD-HELP Foundation Inc

    EIN 454417309 · Headquarters: WOBURN, MA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. Smf Foundation

    EIN 010679061 · Headquarters: CHESTNUT HILL, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  52. Smile Always Inc

    EIN 392125615 · Headquarters: SOUTHBOROUGH, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Smile and Grow Foundation Corp

    EIN 922792128 · Headquarters: North Andover, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Smile Every Mile

    EIN 331904386 · Headquarters: Quincy, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Smile Like Jack Memorial Fund Inc

    EIN 881138061 · Headquarters: WESTFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  56. Smile Mass Inc

    EIN 272173687 · Headquarters: SUDBURY, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Smile Pre-school Inc

    EIN 042734793 · Headquarters: ROXBURY, MA, USA · Education · Latest available filing year: 2012 · Primary form: IRS Form 990

  58. Smiles After the Storm

    EIN 393565054 · Headquarters: Southbridge, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Smiley Seth Foundation Inc

    EIN 833070538 · Headquarters: TEWKSBURY, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Smiling Kids

    EIN 200343695 · Headquarters: Marlborough, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Smirc Inc

    EIN 883271038 · Headquarters: HOPKINTON, MA, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Smith Academy Athletics Booster Club

    EIN 823531673 · Headquarters: Hatfield, MA, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. Smith Academy Trustees

    EIN 042785440 · Headquarters: HATFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Smith Baker Preservation

    EIN 991927395 · Headquarters: TYNGSBORO, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Smith Child Care Center Inc

    EIN 042555876 · Headquarters: NORTHAMPTON, MA, USA · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990

  66. Smith College Class of 1947

    EIN 911016440 · Headquarters: Northampton, MA, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  67. Smith College Class of 1957

    EIN 046065562 · Headquarters: Chestnut Hill, MA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  68. Smith College Class of 1989

    EIN 043114363 · Headquarters: Agawam, MA, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  69. Smith College Club of Cambridge

    EIN 042711913 · Headquarters: Camrbidge, MA, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  70. Smith College Club of Cape Cod

    EIN 046154814 · Headquarters: Brewster, MA, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  71. Smith College Club of Franklin County

    EIN 046046140 · Headquarters: Montague, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Smith College Club of the Treasure Coast Inc

    EIN 650306642 · Headquarters: Lincoln, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Smith College Club West of Boston

    EIN 237225643 · Headquarters: Auburndale, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Smith Family Benevolent Fund

    EIN 470812065 · Headquarters: SUDBURY, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Smith Farm at Borderland Inc

    EIN 271273587 · Headquarters: North Easton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Smith Mills Camp Meeting Association

    EIN 222862857 · Headquarters: New Bedford, MA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Smith Park Young Mens Christian Association of Massachusetts

    EIN 274067363 · Headquarters: Southfield, MA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Smith Students' Aid Society Inc

    EIN 046052751 · Headquarters: Northampton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Smith's Pond Corporation

    EIN 222809583 · Headquarters: Worcester, MA, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  80. Smithfest Foundation Incorporated

    EIN 800603319 · Headquarters: Tyngsboro, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  81. Smithsonian Museum and Theatre Inc

    EIN 461677217 · Headquarters: Lowell, MA, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  82. Smk Parent Teacher Organization

    EIN 264407197 · Headquarters: WARE, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Smma Fund Inc

    EIN 273372469 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. SMOC: South Middlesex Opportunity Council

    EIN 042389659 · Headquarters: Framingham, MA, United States · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Smock Alley Theatre Foundation Inc

    EIN 271230266 · Headquarters: Hingham, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Smocking Arts Guild of America Inc

    EIN 581518462 · Headquarters: Essex, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Smocking Arts Guild of America Inc

    EIN 830490338 · Headquarters: West Roxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Smokey Chestnut Farm Inc

    EIN 383846350 · Headquarters: NORTON, MA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Smol Pawtatoes

    EIN 883597633 · Headquarters: Pembroke, MA, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Snack Roads Inc

    EIN 931393810 · Headquarters: Centerville, MA, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  91. Snapchef Foundation

    EIN 300476467 · Headquarters: HOLDEN, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Snapdragon Montessori School

    EIN 812350019 · Headquarters: Cambridge, MA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Snave Foundation

    EIN 236928009 · Headquarters: Winchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. Sne Admirals Inc

    EIN 862156075 · Headquarters: SEEKONK, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Sneappa Eastern Region of Appa Inc

    EIN 263474896 · Headquarters: AMHERST, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Snhc Inc

    EIN 680514586 · Headquarters: BOSTON, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Snow Farm- the New England Craft Program Inc

    EIN 063547767 · Headquarters: WILLIAMSBURG, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. Snow Riders of the Nashaway

    EIN 833338872 · Headquarters: Lancaster, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Snowbirds Snowmobile Club Inc

    EIN 222559972 · Headquarters: SPENCER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Snowbound Club Inc

    EIN 042677163 · Headquarters: TEMPLETON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

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